The sequence in which characterized resources will be drawn from a queue during simulation depends on (1) the ordering of incoming resources relative to those already in the queue, and (2) the criteria applied in selecting resources for withdrawal from the queue. To achieve the desired system behavior, a STROBOSCOPE programmer can define draw sequences by specifying respectively [items in CAPS denote STROBOSCOPE programming statements]: (1) a queue's socalled DISCIPLINE and (2) conditions on the link emanating from the queue (e.g., using RELEASEORDER and DRAWWHERE with FILTER-expressions). Example draw sequences (implemented by ordering, selection criteria, or a combination thereof) are: